First we calculate a correlation matrix for the tags.
## Parallel analysis suggests that the number of factors = 8 and the number of components = NA
## Parallel analysis suggests that the number of factors = 2 and the number of components = NA
Using correlations, 3-6 clusters seems reasonable, so we can go with 5 as was previously useful. With the Jaccard similarity metric, more than 3 clusters seems like a stretch… for now we’ll leave this method behind.